Type-writing machine.



" y No. 895,2313.

PATENTED AUG. 4, 1908. G. W. BROWN.

TYPE WRITING MACHINE. Runnin nu Jn. so. .1901..

@m- J'f A Mmam s sEEnrs-snnm z.

- PATBNTBD AUG. 4, 19a. c. W. BROWN.

APPLIPATIOIH FILED JAI.30, 1901. y

5 sains-s111222 a.

TYPE WRITNG MACHINE.

APPLICATION FILED JAX. 30, 1901.

PATENTBD AUG. 4, 190s. Y o. W. BROWN.

'TYP-B WRITING MACHINE.

APPLICATIO'ZI I'ILzr- :53.30, i901;

l' PIIIED' o. W. 3mm, AT N AIIG-4,1908` av sums-sumar ls.,

lUNiTED STATES PATENT oEEioE.

CHESTER W. BROWN, OF JACKSON, MICHIGAN, ASSIGNOR TO WYCKOFF, SEMANS ds'BENEDICT, F ILION, NEW YORK, A CORPORATION OF NEW YORK To all whom itmay concern:

Be it known that I, CHESTER W. Beowx, a citizen of the United States,residing at the city of Jackson, in the county of Jackson and State ofMichigan, have invented certain new and useful niprovements in Type-VVi-iting Machines, of which the following is a specification.

his invention relates to type-writers and thas specific reference to thespacing mechanism, the object of the invention being to provide. an escaement mechanism wherein the carriage will) b e moved to differentdegrees corresponding to' the various widths. of the differentlettersand characters to be written.

As type-writers are usuall built, the carriage. is moved a eert-aindlenite distance each time a key or the spacing bar is struck,

2o and in-con'se iience, there is not that uniform appearance t at isfound iii matter printed from ordinary type. With the presentconstruction, the type have the proper rela-tive widths, and thecarriage is fed correspondingly, so that the matter written resemblesclosely ordinary printed mat-ter.

In the drawinUs forming a portion of this specification andD in whichlike'nnnierals of reference indicate similar parts in the several viewsF igure 1 is a rear elevation showing a common form of typewriter equiped with the present invention, a portion of t ie frame being brokenawayto show the escapeinent mechanism more clearly. Fig. 2 is a view partlyin section and partly in elevation, and

showing lhe parts of the escapement meehaiiisin in heir norma-lpositions. Fir'. 3 is a sectional view in the plane of the shaft M,

showing the connections between the Asaid .4o shaft M andthesescapeinent wheel and the cap 23. ,Fig 4 is a top plan view showingthe rear portion of the frame of the typewriter with the presentmechanism thereon. Fig. 5 is a detailed elevation showingr a set of 215tuniblei's with the roeker-extension of the limber pawl and the meansfor shifting the tuinblei'sfor operative engagement by different,portions of said extension to corres ond to upper and lower casecharacters. l* ig. 6 is a view similar to Fig. 5 and showing thetumbleis positioned in operative relation to the upper case characters.Fig. is a view similar to Fig. 5 and showing a construction adapted.foi' rise witha double- Specication of Lettera lPatent. Appiication mea:anita-y so, 190i. Senai No. 45,385.

TYPE-WRITIN G MACHINE.

Pat'efted Aug. 4., 19t-)8h Fig. 7 and showing two sets of tumblers oneof which permits of greater movement of the carriage than the o1 her,for capitals. Fig. 9 is an elevation showing the type face of atype usedin a two case'niachine. Fig. 60 10 is an elevation showing the face of atype 01" a double shift machine.r 1l is an elevation showing the limberpaw! with the parts thereof disassembled. fig. 12 is an .elevationshowings. modification of stiff-.'65

pawl with parts disassenibied.y F 'v'. 13 is an edge View of the limberpawl, s own in Fig. 11. Fig. 14 is an edge view of the paw] shown inFig. 12. Fig. 15 is a rear View of the latch for preventing recoil ofthe carri Ue when the latter is set back. Fig. 16 is a si e View of thestructure shown in F ig. 15. Fig. 17 is a tol` plan View of theconstruction shown in ig. 15. Fig. 18 is a top plan View showing a keyfor striking-both the lower case and the -upper case letter, the

'spacing for the two letters beingindicated on the key. Fig. 19 is aplan view showing a key for a double shift machine to print bot-h the u)per and lower case letters and in addition thereto a character forpunctua` tion, the .spacing for the two ieteis and one unctuation4 beingindicated on the key.

1ig. 20 is an elevation showing a modificationof. escapenient wheelwherein teeth or 35 ins on the side of the wheel are substituted igorthe usual peripheral teeth. Fig. 21 is a side elevation of a l ey-lever,show' v the manner of attaching the rods V12, etentliereto. Fig. 22 isan end elevation oi the same. 90 Fig. 23 isan elevation of theescapenient wheel, the'cover being broken away to illustrate theinclosed ratchet mechanism which permits of rotation of the said wheelin one direction in order that the carriage may be moved backwardlyslightly without neces: sitating raising the feed nach from engagenientwith the feed oinion on the escapeinent-wheel shaft. ig. 24 is anelevation showing a scale designed for uns: in connec- 10o tin-with thepresent mechanism. F 25 is a modification showing a construction whereinthe escapenient wheel is moved into `and out of operative relation tothe pawls' instead of the pawls being moved into and out of engagementwith the wheel. Fig. 26 s liows a modicatioii of the constructionwherein the escapeinent is reverse to that 'shown in the figures abovedescribed. F

,5. shift machine. liig. 8 is a View similar to 27 is a side elevationof the construction 11'0 shown in Fig. '26. Fig. 28 shows an auxiliaivstop for lvarying the. spaces. 29 is a sectional View ot a modificationof `'the tumbler.

Referring now to the drawings, A represents thefranieof the. type-writerto which the. attachment is connected, and B is the drum containing thefeeding spring and on which is wound one end of the feeding strap, theopposite end of this strap, which is shown at al, being attached to thecarriage "for moving the latter forwardly during the progress of thewriting. This step by step movement of feed of the carriage, is securedin the present instance by means of suc-limechanisni as will permit ofdifferentdegrees of movement of the carriage to correspond to type ofditferentwidths.

In the usual-construction of type-writer, the successive steps oi thecarriageare all of the saine length, but in the present instance,

aunit of feed is adopted, and for eacl type struck there are eCorresponding numb yr of units of feed, so that the diierent stepsin themovement of the carriage may or may not be of the same' length,depending upon the width of the type struck. f: The niechaIi isn. bywhich this variation 1n feed is securedA comprises an escapement shaft Mwhich is\v journaled in the frame of the machine and which carries ainion 28 at its forward end that meshes wit i a rack upon they carriage.

Mounted loosel` on the shaft M is an es 'cap-ement wheel 1 cariyinf aratchet wheel S on `the rear thereof ant a s ring-pressed awl 49 whichengages the. ratchet wheel 4S, is attached to the cap 23 which in turnis fastened to the shaft M. This pawl is so disposed, that when thecarriage is retracted, the escapcnieiit shaft will turn freelv of' thees` pement wheel, while the pawl will pre vent free rotation of theshaft with respect to the escapenient wheel in the'o onsite direction asystem of p'awls and tuniiileis being pre-sided to permit of step bystep' rotation o the. escapcincnt wheel to permit of forward feeling ofthe carriage.

vne tv )e-writer is provided with the usual recit-sha t O having thetension spring L and its adj listing screw l, this spring being adaptedto hold the shaft -Yield ably in a predetermined position. Extendingupwardig: from the shaft O and at right angles theneto, is a rc her armO which carries 'a rigid pawl 9 bounted loosely upon the hub of theescanenient wheel and held in place bjrthe nut 31, is a hub 5', shown inFig. 11, and having -sd eais with whiehis engaged a p'intle id on' thispintie is pivoted a pawl 6b hav. a laterallyv projecting tooth 6 whichis ated for movement into and out of en. peinent with the Ssfapcinentwheel, alter- .-nately with the rigid pawl 9. On the rear faceof thepawl 6h is formed a hook by bending the end of the plateV ,upwardly toli parallel with the body of the pawl, and 'this ook` is engaged over anarc-shaped guidehar 17"that is carried by the rocker arm (l.- Witli thisconstruction, asv the arm O Vis rocked, the pawl 6*l is rocked on thepintle 5 to move the tooth 6 into engagement with the escapement wheelwhen the pawl 9 lis moved from engagement therewith, and vice versa,,but at. 'the same time, said guide. bar 17, does not prevent'rotatablemovement of the liniber )awl 6* with the hub 5 on the escapement s iaftfThus, when the rigid pawl 9 is in engagement with the escapeinent wheel,said wheel, and therewith the escapement shaft, is held againstrot-ation and the carriage against movement, but when the rigid pa-wl ismoved from engagement with the escapenie'nt wheel and the limber pawl ismoved into engagement therewith, the cscapeinent wheel nia-v rotate andcarry the limber pawl rotatably with it, until the liniber pawl isstopped. Thus the rocker arm 0, by means of the curved guide 17 attachedthereto, which engages thc hooked portion of the loose pawl 6b, pushesthe loose pawl out of. engagement with the escapenient wheel wheneverthe lifted paw] is movcd forward into{\engagement therewith by therocker` arm `in print-ing, and also moves the loose paid-.backward intoengagein iitwith said wheelpwheneverV the fixed pawl is movedbackwardout of engagement with said wheel when the key is released inrinting. The rotating movementof said oose pawl by which if. dovesbackward to space oft theteeth necessary for an esca icment, is causedby the spring 19 and 20, w iich at the lower extremity is connected tothe stationansv portion of the. frame, and at the upper end is connectedto the end Gant the. liinber pawl, and exert a downward pull thereon,and thus whenever the tooth of the liinber'pawl is re-l leased fronithe. teeth of the escapement wheel, t-he said spring 19, 20 revolvessaid liniber pawl upon its bearing, t-lie end 6" moving downward for thearm to engage with the tuniblers, and the toothed end (3"l moving upwardfor the tooth to engage again with the escapenient wheel at whateverposition it. is stopped by the engagement o the arm with the tunihlcrs.rlhe arm 19 is a spring arm attached at its forward end to a fixed'partof the frame 'and 20 is af coiled spring, one end of which isVattached to the free end of said spring arm 19 and 'the other end ofwhich is secured to the arin 6?, the construction being such tl- -.twhen the rocker arm O is depressed it engages with the arm 19 to depressthe saine and thus exert tension on the arm 6*.

In order to'liinit the rotation of the limber l il() of s'aidarm, thesnorter the feed of the carriage, and it is by varving the limit ofrotary movement of this stop a rin, that the different lengths of thesteps in the feed of the carriage is attained.,|

A tumbler shaft is mounted in tlieframe of the machine and on thistumbler shaft are loosely mounted, in the present instance three bellcrank tuniblers, shown at 2, 3 and 4 having horizontal arms 2, 3', 4respectively, and which are. adapted to rock on their shaft. in planesparallel with the plane of movement of the stop arm 6". The tuinbler 2lies norniailjv on onevsidc of the path of finger 6c and the tumbler 3lies normally to the other sideof the path of vfinger 6, while thetumbler -1 lies normally in the path of finger 6c. The'uppcr end of thetumbler 4 comprises two steps 50 and 51, of which the step 50 is thelower and the step 51 lies normall; in the patfi of the finger 6v. Thetuin'- bler. 3 has a hook-shaped finger 52, the upper face of which issomewhat, higher than the steps of ,tumbler 11. shaped finger vrhich issomewhat higher than airv of the otherizpper end faces of the tumblers.Thusif the rocker or tumbler 2 be moved into the path .of movement offinger 6, the stop ann will have a minimum of rocking movement and hencethe escape` ment wheel wilt have a minimum degreeof movement. and thecarriage will be advanced its shorter step which, in the constructionshown,A is two units of motion. If the tuinbler 3 bemoved into the pathof tlieffiiiger 6c, the arm 6 will have the next greater degree ofmovement or tiiree units, if the step lbe brought into the sameposition, the stop arm will have the nei greater degree of movenient, orfour units. and if tlic step 50 be brought into the path of the stoparm, then the latter will have. its greater degree of movement, or fiveumts, and thi1s, depen d ,ving upon the tumbler that is operated, thecarriage will be permitted to have its four dif- Hence, when the letter"b" small is struck,

the carriage must be advanced four units to position.

Tumbler 2 has a. hookacconiniodateitliis let-ter, while, wlieir, the

.letter B" is struck, the carriage iniistdie ad- Astlie upper step ofthe vanced five units.

tumbler 4 represents -four units, the operation of the b key does'notshift any tlunii;`

bier. but instead tumbler 4 is already in posi# tion to secure thcdesired result.. When wil 'is struck however, vthe -tumbler 4 must beshifted to move its lower step into Voperative To thus move thetuinblcrvv'4, it. is provided with an arm 4 from which depends the rod12d, connecting with the keys 14,114, b v means ofthe equalizingbar'12". A

The arm 2 is connected by rods 12, 12* and 12b, with the several keyscorresponding to the letters requiring the two unit space,

n one the arm 3' is connected with the extra.

space bar 13 bv the rod 12", this being so coristructed that it isoperated by the. keys that .require the three unit space. As thecapitals require more units than the small letters, additional orgreater feed for the ca itals must be provided. T o give this 'addilioniil movement when the capitals are struck,`it. is

necessary that the stop arm 6a be permit-ted to have a greater dewree.of rotation. For this purpose, the tuniblers are mounted betweencollars 27 on the shaft 15, and this shaft ispadapted for longitudinalor axial movement under the influence of a shift lever 42 connected withthe shaft. through the medium of a rod 11 having ai collar 25 which isfixed on the shaft 15. A lsup'port H for the shaft 15 has a. stop collar.26 disposed there-A against, and Iwhich collar is upon the shaft 15,and'acts to limit the rearward movement of the shaft under the influenceof the shift, lever, it being understood that this shift lever is thesame as that used in shifting the carriage carrying bars to move thecarriage for the upper and lower case letters. Iti will be seen that thetumblers-are thus shifted bodily in a fore and aft direction.

The end or finger 6 has twosteps, (i land 6, which lie alternately inposition for engageincntl with 'the tuinblers, as the tumbler shaft isreciproeated, arid it will be seen that. when the tuinbleis are inposition'for engagement b v the step 6d, the feed of the carriage willbe less vthan when the step 6" is in operative relation io thctumblers,and the escapenient wheelwill have a greater degree lower case lettersthe next greater movement, and the capitals or upper case letterstheggreatest movement of' the carriage.` The tumblers are normally inposition to engage the step (ic for printingr the :uwer case letters.lYhenever it is desired to print capital letters,

the ca )it-al shift` kev is depressed,' whichshifts t ie tiiinbleis aiidthe shaft 15 forward,

4f -V i 895,238

until the tumblers are in position directly underneath the ste i Gf, andwhenever a capital letter is printe the said step Gf engages saidtumblers, permitting a greaterv movement of the escapement wheel andcarriage. than when the lower case letters were printed and thetiiinblers engaged the'step 6e. Whenever it is desired to )rint figuresand characters, the figure shiftV e'y is de ressed, which shifts thecarriage, and also t ie shaft 15 and the tuniblers thereon, rearward toa position where the tuinblers are. direetljfiunderncath the step (id ofthe arm, and whenever figures or characters are printed with thetumblers in this position, the tumblers engagesaid step 6d, and limitthe movementof the escapement wheel and carriage to a less-distance thanwhen lower case letters are printed and the tuniblers enga-1e step 6e.

In the construction shown 1n 4ig. 8, I have employed a second tumbler 2ofthe same heightas tumbler 2, and a second tumbler, 3a of the sameheight 'is tumbler 3; the said tumbleis 2a and 3a are separated a shortdistance from the tumblers 2, 3, 4, and all of said tumblers 2, '23, 3,3a, and 4 are positioned normally for printing the lower ease letters inposition to engage the lowest step of the said arm, 6d, and the saidtiiniblers 2 and 2 give the same two unit space in rinting the lowercase letters, and the tuinb ers' 3a and 3 give the same three unit s acein printing the lower case letters. T ie arm of the loose pawl isarranged with three ste s, as shown,

which steps are of such length t iat when the tumblers are shiftedforward in printing the capital letters, the tumblers 2a and 3a. arebrought directl)v underneath the highest step Gf, and whenever one ofthe, capital letters connected with said tumbler is printed, saidtumbler will engage wit!` the step 6 of the arm, and permit the carriageto move forward a greater distance than if it engaged the step 6". Onthe other hand, the. tumblcis 2, 3, 4 are brought forward by the saineIshift unti1 they are directl)v underneath the step 6, an( vin printingcapital letters connected therewit i, will give the spaces provided for.bts' said step 6". By this means, when the capital letters are irinted,soi-ne may be connected with the jtum 1ers 2, 3 and 4, and for thecapital letters give one more unit of s ace than for the lower rase.letters, while ot 1ers ma)v be connected with the tumblers f2 and 3*,which for the lower ease letters give, re: spec-tively the same spacesas the tuinblers 2 and 3, and yet, when the capital letters are printed,because of their position being forward of the tumblers 2 and 3, when 2and 3 Vare shifted a sullioient distance. to engage Astep 6e, thetumblers 2a' and leare farther forward, and in position to engage thestep (5f and give two units more tothe capital letters connectedtherewith than to the corresponding lower case letters, thus permittinga escapemeiit wheel.

greater latitude of variationbetween the lower'case letters and theircorresponding capital letters than would be 'ermitted b cit ier of theconstructions siown in the other parts of the drawings.

To limit the return movement of the limber pawl, an adjustable stop `18is provided in the form of a. thumb screw. By limiting the returnmovement of the lmberpawl, the stop also limits the forward movementofthe Instead of the. construe-f tion hereinbefore described thel fixedpawl 9 may be rigidly mounted on the stationary bracket H as shown inFig. .25. The limber pawl is formed without 1 he hinged joint and ispivoted 011 the casting 29, being held in lace by a mit 55" so thatneither ofthe fee pawls has any motion fore and aft of the machine, butthe limber 'pawl has a ro` The eseape with a wing 6 that is similar tothe corresponding wing in the. construction already described and thatcooperates in the same way with the means for variabharresting saidiawl. If desired, the-fixed 'awl may also e mounted centrall)T withtllie esca ement wheel, the me as the limbcr pawl, y constructing theparts as shown in Fig. 12, in which 9a is mounted upon said hub and 9 isconnectdti t-licrewith b v means of the hinge j'eint 9b, with the tooth9, as shown. The outer curved edge of 9c takes the place of the guide 17heretofore.shown, and the part 9c is adapted to he pushed forward andAbackward y the rocker arm as heretofore. t

The. part S, Figs. 1 5, l0 and 17, is formed to serve as a latch toholfl said limher pawl and s therewith the escapement wheel from turningbackward when the carriage is moved backward for any reason. The saidlatch is mounted upon the left-hainl face of the rocker arm O by metasof a pivot pin Sd (Fig. 15) passing through said rocker arm and having anut S threaded thereon to hold said pin in place.. A springlSO pressesthe arm S toward the front of the machine, its motion inthat directionbeing normally lim'- ited by a stop screw 21 threaded through an VarinS" projecting from the arm S, said stop screw contacting with the rearface of the rocker arm O. An arm 8aL is bent olf from the. arm 8 and hasthe shape best shfr-:n in Fig. 17; 'This arm has a face that stands atan inclination, such that when the loose pawl moves with the escapenientwheel 1 in' the stepping motion of'the carriage, said loose pawl strikesthe inclined face of the arm S and inovossaid arm toward the rear Tothis end a colof the machine, the loose pawl thus moving ast the arm.The arm Sa' then sna s in ehiiid the loose pawl` and serves as a atch toprevent backward motion of said pawl and 5. theescapenicnt wheel whenthe carriage is moved .toward the right. When the 1dog rocker isoperated a finger S.b of the arm 8 strikes the esca ement wheelandprovents the arm 8 and atcb 8a from moving as far 10 toward the frontof the machine as the loose pawl moves. The loose pawl thus moves outfrom behind the latch and is returned for a new step by the spring 19, 2l

'The machine is provided with a carriage scaleinounted as usual ontlie'stationar'y framework. Instead` of the ordinary scale, there may beused the special scale 60 shown in Fig. 24. The graduations of thisscale'cor- 'respond kt-o the feed units of the carriage feed 0mechanism, so that. said graduations are finer -than those ordinarilyused. In order to avoid crowding, the even numbered graduations aredrawn above, and the odd numbered lgraduations below, a, line extendinglongitudinally of .the scale. The upper graduations are numbered in theordinary manner, from left to right. A second series of numbers fromright to left, is placed adjacent the lower graduations. An indexmounted on the carriage, will show the position of the carriage at anytime, by reference to the upper series of numbers. At the same time, byreference to the lower series of numbers, the operator may see at encethe numbei" of feed units remaining to be. written upon before the endof the line is reached.

To enable any operator to remember the ,number of units given, to eachletter, I have indicated the spacing upon the key as shown in Figs. 1Sand 19, in which 44 and 45 are the respective keys inthe key levers 6'1and 62. 1n place o f the ordinary springA for im iarting tie movement tothe limber paw required, I employ the spring arm 19, which is` attachedto the limber pawl by the wire 20, which may be a coiled spring, ifdesired, or any other. suitable connection, the other end of said springis attached to the frame or some stationaryv part of the machine, as 24,

with thespring 19 in contact with the movable portion of the rocker arm,as O1. By this construction the normal pull of said s ringupon said armof the 'pawl may be: a most not-hing, yetwhen the rocker arm is operatedin the printing of a letter, the rocker arm presses down the portion ofthe spring in contact therewith, and the end connected with the limberpawl exerts an increased tension upon the limber pawl. vAs soon as 6Cthe rocker arm recedes and the. esca )ement wheel is released from therigid pawl for its forward movement, the tension of the spring 19 isdiminished to .its'normah and consequently otl'ers very slightresistance to the forward movement of the said escapeinent thusaccelerate its speed when moving fri" the wheel, andyet the tension ofsaid spring is so diminished that it permitstli'e carriagev to moveforward without anyretardingeffect,

vof

as is usual where the tension of said spring is greatly increased.

In Figs. 26 and 27, I have shown a variation of the tuinblers and pawlsby means of. which they givethe reverse escapemelnt, or

the forward movement of the carriage uponl the downward stroke of thekey. vTo aeconiplish this result, the fixed pawl is in erigagementwiththe escapeinent wheel when the carriage is aty rest,.as shownI"ief."?'i, and i the. lim-ber or loose pawl is out of engagement .asshown, andV situated u on the left hand side of the fixed pawl in t iedrawing, as shown in Fig. 26. T he tumblers have openings therein, asshown in Fie'. 26, with.

the 'upper inside portions stepped, exactly the reverse of thoseheretofore shown, and

adapted to engage .the arm of the loose pawl as it moves upward on theforward move? mentof said carriage, and limit such forward lmovement ofsaid carriage to the distance required for the letter rinted. Theoperation of the said )awls is exactly the reverse of thatI heretoforeshown, and the `fixed pawl being in engagement with .I thel escapemcntwheel, wheneve theletteris struck, the fixed pawl is moved outofen`gagement with said wheel by means ofthe space bar and the rocker arm O,thus'releasing the: said escapement wheel, and permitting it and thecarriage to move forward; by the saine movement of the rocker arm andthe curved arm or guide 17,' attached thereto, the loose pawl is movedinto engage.-

ment with the said escapeniei'it wheel, and is carried forward by it onits forward movement, until the arm ,thereof engages one of the steps ofthe tuinblers, limiting such forward movement. Upon the release of thekey lever, the fixed pawl is returned to its original position inengagement with the teeth of the wheel by the return movement of therocker arin under the' pressure of the spring L,'and the loose pawl is'moved out of its engagement with the wheel by the curved arm 17, and theforce of the spring 19-20 (not shownl returns the said loose pawlto'it's initial or starting point, in readiness for the spacing ofanother let-ter. In all other re` ,change the distance spaced by eachkey, by

inserting ity between the end of the stop 18 i 'and the Ember WW1, forthe distance for saidescapement, and thenl increasethe distance .nyremoving it therefrom and perrnittino' t' f witlptie end of said 'stop18.V The said-.3' auxiliary stop is secured to therocker Sirrn .0 bymeans of the screw 18, and at the 'upper `end ofv the body, 18", is thecsp 18C, w Y ch is arde tedto fit over the end of the screw 18, an stopthe loose pawi a certain dist-ance from the end of said screw 1Q.A By

vthis means the loose paWl is stopped at the proper distance from thefixed paivl for ordinary writing by the engagement with said auxiliarystop, and prevented from further forward` movement. -Whenever 'it isdesired to orive a more open space to the. letters, the t-..ixilia rystop is sprung back, as shown by the dotted lines, and is then turned toone side out of engagement with the screw 18, lfind out o'r' the path oft-lie loose. pawl, and the loose pawl then moves forward untilit isstopped when it comes i ,-.to engagement wit the end of stop 18, .t onetooth farther forward than when it stopped in engagement with the,auxiliar-'y sto Q From this osition7 whenever a letter is printed, theoose pew! travels throngh one more tooth dista-nce, before the'arrncomes int-o engagement with the tumbler operated by seid key, and uponthe forward movement of the carriage, it is permitted to ps5 through onemore tooth distance of space l before it is stopped by 'the stop 1S-This gives to each letter one more unit of space, :ind produces e more oen iwriting and one desired and preferred y some for special purposes.

The machine to which I have shown my improvements applied is thewell-known Remington No. 6 typewriting machine, and `com prises the linelock mechanism, usual in this machine. A rod E is slilably mounted inlugs rising from the. top piste of the inachine :ind is normally heidtoward 'tl-:e left, as viewed in Fig. 1, by a spring. An arm '16 fixedto this rod has its end behind I he end of the shaft M und nearly butnot quiteV in the path -of an arm 161, which is integral with or securedto the rocker arm t)- 1When a line is nearly completed, :i tappe!mounted on the cai-ringe engages a stop l" editi-table along the rod Eand presses said s o and said rod u, short distance to the rignt, asviewed in Fig. 1. This brings the erm 15 in front of the arm '16a andlocks the rai-cker O against motion. As this rocker is connected totheuniversal bar which extends under all of the key levers, the keys sitethus locked fie-einst further operation.

Vhatis claimed is 1. In 'a typewriter, the combination with the carriageandthe escapement wheel therefor, of o limber pawl -rpounted concentricne loose -pe'wl to stop in engagement.

with the wheel and mounted for alternate movementwith und free thereof,tumblers Y tmenus for shifting said tumblers bodily, find a rigid pziwlmovtible in :i plone at an tingle to the fast-named pawl for movement ofthe lat-ter into and 'out of engagementwith the escnpenient wheel andadapted to engage the -esczipement wheel alternately with said firstnamed pnwl.

2. In a typewriter, the combin:ition with Vthe ceri-inge und theesczipement wheel theretor, of ai timber pnwl mounted for yalternatemovement with und free from the wheel, tumbleis mounted to be. shiftedbodily and rocked into. the path of the pnwl to limit the movementthereof in one direction, connections vbetween said tumblers :ind theirrespective key levers for effecting Vone of Suid movements, mea-ns foreffecting the other of said movements, und a second pztwl adapted forengagement with the escaipement wheel interclmngenbly with the yfirstnamed niwl and during the free movement of said irstnamed pziwl, saidsecond pawl having connections with the first pziwl for moving itinto.find out of engagement with the wheel.

3. In :i typen'iter, the combinefion with the carriage and theesczipement wheel therefor, of :i rotatable pnwl :idnp'ed for move-4ment into and out of engagement with the wheel, said pai-rl having astepped portion,

ind tumblers mounted for movement into the path of the pawl to limit themovement thereof, keys, means whereby certain of saiid keys control themovements of tumble-rs into the path of the pawl, snid tumblers beingalso mounted for bodily movement into und out of operative relation tothe dillerentsteps of the pnwl, :ind means for effecting such bodilymovement..

4. In :i type-writer, the combination with the carriage and theesczipeinent. wheel .hereof, of n movable puwl :ida )ted for movementalternately with and free troni the wheel rind having a stepped portion,ond :t '-.umbh-r operatively connected with o key for movementtherebyint-o and outof the path of movementof the puwl to determine themovement thereof, snid tumbler being mov` able into and out of opeietiverelation to the severzil steps of the pnwl to permit 'ofdifferentniovenients of the hitter.

5. In a type-writer, the combinot-ioi'i with the carriage and theescnpement wheel thereot, of :i pivoted pnwl adopted for movementalternately with and free from thewheel :ind having n steppedportion,und :i stepped tumbler hating' connection with :i key for movement.-thereby to presentits steps interchangeably in the puth of the steppedportion of the ptiyvl to limit the movement of the .1, .l respectivekeys, antlmeans movable with the wheel for engagenient-'with thetiimblers and having-stepped engagingr'aces, and means ,26 *pawlfsaitl'tun'ibler' having means for moving itto'dispose its`stepsinterchangeablvin the ath of operative movement of the pawl toii'nit'the' moven'ient "t hereof. "8..'In'a'itypewriterlthe combinationwith ""tlt'e-c'a-rriage, of an' eise'apement ineliitling apaivl.atlapteil'fnrmovement into andA ont of nimmt-,ive relatiin togovern the movement ofA the carriage, 'tumhxlers adapted for move-*inent' iiit the path tifjsa'itl pawl to limitits innvenient in pnetlieetion, means for limiting movementof th pawl in the other clii'ee.-tioii'Lmeans for liinitii'igthe longitudinal butlilyi'nvemnt'oftlie't'ivii'nhlers, a second pawl adapted f orf movei'ne'ntinto and ont.of o ierative'relation interchangeably with the tiratmentio'rietl pawl',ii` 'ans for giiverning the movement of the cond-mentioned pawl, a'apring'fh'aving' ci'n'iieeti'en with one of the ,I lp'awls, and ineanisforfii'iereasiiig the tension of 40'saidws ring.4 A1 f `9," n la'type-writer", lthe combination with al'earria'ge'and an' eeapementshaft, of an escapement''A wheel fn'i'oiintetl on 'the shaft, a

Y n rocker, arigid paw] carried by the rocker for engagen'ient withtliewheel, an arcuate guide on t-lidroelier cnnentric with the shaf t, aliniber. iaivl mounted"n'the shaft and having sliilalgle eonneet'innwith the giiiile to permitof pivotal Vmoveinei fof the limbei' pawl anilfor lateral 'inoveinfentttheiely into a nd ont of engage'ii'ientj'withftl'ie'wi'heel, and means 'for lin'iitiiigf'the'i ninw'tiihtLiit of thelin'iher pawl 'i the movement of the {vpni.. riterfthe emnhination withu v .i age anti anfe; escape'ii'ien't wheel on tl the .ih-eff .il

e `shaft, a liniber pawl ker having a rignl Y n4 i itt ixt'o anil out Of engage- 'l"cennect.ions between l, i l I r angl liiiil r narw= farmoving the hiigagt'rinejiit. wit-.h the p wl withtlieratehet to'c-'a'ieineiit Shaft, of ani fr limiting the moveretiirn movementottlieliiiiher pawl.

l1. 1n atype-writer, the combination with the Carriage andan'esea'pe'ment wheel operatively'cnnneetetl therewitligefa paw]atlantfrom the wheel, variahl'eiineans for limiting the degree ofmovement of the `iawl with the.

the'roeker and with which thepawl is sliilably connect-eil and b v whichit is movable into and ont of engageziient with the wheel,

ed forinevement alterinitehv with and free' adjust-able straten therocker fer limiting the' I atljust'able means fdr limiting' the returny-tuinblei's into and ont of opera-tive relatinn with said movable means,a means for engaging the eseapenient intereliaiigealil)v 'wit-bythe Saidmovable means, means for limiting the movement. of the said movablemeans, means for limiting the botlilv shifting movement of thetiiinhlers, a spring having connection with said movable means, andmeans for increasing the tension of saiil spring.

13. In a type iwi-iter, the combination with the carriage and the esca)ement wheel therefor, of a paw] adapted lor alternate iiinvement withanil free from the wheel, ttimhleis having connection with theirrespective keylevers for movement thereby into the path of movement ofthe'pawl, a second pawl adaptetl for engagement with the said wheelinterchangeably with the first-mentioned pawl, and 'means connected withone. of the pawls to sliilahlv eoiitaet with the other pawl to move thelatter ont of engagement withthe escapeinent wheel,

lll. In a typewrite the combination with the carriage and tlie.escapement wheel therefor, of a pawl adapted for movement alternatelywith ani` free from the wheel, tuinhlers adapted for movement into thepath of the pawl to limit the movement thereof in une direction anddetermine the movement of the carriage, saiil tninbleis having operativeconnection with their respective keylcvers, :i rocker ar^i having a pawl for engage-` ment with the esc-agement wheel ,interchangeably withthe `first-mentioneil pawl, cuniirc -the carriage' and the escapenien'twheel therelim'it the nioveiiiani et' the eaijiiage, rindan l for, ofapawl atlapteti for movement into 8 ses,

'levers and adapted for movement into the and out of engagement with thewheel, tuniblers connected with their respective keypath of movement ofthe pawl to. limit movement thereof in one direction, said tumblersbeing adapted for bodily and rocking movement into and out of operativerelation to the pawl, and mea-ns for imparting such movements to saidtumblervs.

' 16. In a type writer the combination with the carriage and theescapement wheel therefor, of a iawl adapted for movement into and'out oengagement with the wheel, tum- -blers connected with their respect-ivekeylcvers and adapted for movement into the path of movement of Athepawl to limit movement thereof in one direction, said tuinblers heiligadapted for bodily and rocking movement into and out of operativerelation to the pawl, and means for moving the pawl when free from thewheel.

17. In a type writer, the combination with the cariiage and theescapement'wheel therefor, of a rotatable pawl adapted for movement intoand out of enga-gement with vthe wheel, said pawl having a-steppedportion, tumblers` connected with their respective keys for movementinto the pathfof movemciitof the'pawl to limitthe movement thereof iiionedirection, means for moving said tiunblers .bodily into and out ofop-. crative relation to the difiere-nt steps of the pawl, a springhaving eoimection with the Asaid pawl,means for placing the said springunder tension, a second pawl adapted for engagement. with theescapenient wheel interchangeably with 'the first pawl, and meansconnected with one of the paivls adapted to contact with the other pawlto move it out of engagement with the escapement wheel.

, 18. In a type writer, the combination with the carriage and theescape-.ment wheel therefor, of a plurality of tumblers connected withtheir respective keys, means movable with the escapement wheel and.adapted to engage the tumbleis, means for shitting the tuniblers bodilyand rocking them into and out of operative relation with said movablemeans, means for engagement with the' wheel interchangeably' with thesaid movable means, and variable means for limiting the movement of thesaid movable means with relation to the escapement wheel.

19. In a typewriter, the combination with the carriage and theescapemcnt wheel therefor, of a plurality of timiblers connected withtheir res iective keys, means movable with the wheel for engagementtherewith and with the tumblers, means for shitting the tumblers bodilyand rocking them into and out olf-,rf operative relation with saidmovable means,

. meansfor engagement with the wheel interessf turn movement of the saidmovable means with relation to-.the escapement wheel.

20. ln a type writer, the combination with the carriage having a. rack,of an escapement shaft operatively engaged with the rack, an escapementwheel mounted on the shaft, a rocker, a pawl carried by the rocker forengagement with the wheel, a4 uide oit the rocker, a limber pawl mounte(on the said shaft and having slidable connection with the guide topermit of pivotal movement of 4the limber pawl and for lat.;ial movementfpawl adapted for movement into and out of o )erative relation to governthe movement oi the carriage, rockinfy tumblers co-acting with saidiawL'means For shitting said tum.- blers axially and means forliiiiit-ing the axial movement of the tuniblers.

22. In a typewriter, the combination with the carriage and keys, of anAescapement including a pawl, tumblers mounted for individual movementinto the path of the pawl, key controlled means for effecting suchmovements, and kev-controlled means for placing the pawl under tension.

23. In a type writer, the combination with the carriage, of anescapenient including a wheel and a pawl, a second pawl adapted formovement into engagement wit-h the Wheel interchangeably -with thefirst-mentioned. pawl, tumblers adapted for movement into andout ofengagement with the. first-nientioned' pawl, means for placing thefirstmeiitioned pawl under tension, and means for shitting the tumblersbodily. 24. In a -type writ-er, the combination with the carriage,0f anescapement incluf lirff,r a wheel, a limber awl adapted for movementinto and out OtPengagemen-t with the said wheel, a second pawl adaptedfor engage\ ment with the wheel interchangeably with theiirst-meiitioi'ied pawl, the. nist-mentioned pawl having a steppedportion, t-unibleis adapted for movement into the path of the limberpawl, and means for, placing the limber pawl' under tension.

25. Ina typewriter,-the combination with the carriage, of an escapementdog, tuinblers mounted for bodily and rocking movement the path of saiddog( means for placing saitl f dog under tension, and means forliholdingsaid dogl against backward movement during the return movement the.carriage. 27, In a "type writer: the combination wit'n tl,re"'e:iri1age,of an eseapement includftumblers individually into the path oti\ theYadapted for movement into and out of opera- 75 'means for placlingfthepawl under tentive engagement to govern the movement of rvs'ioli, meansorhohhng the eseapement dnrthe carriage., tumolers mounted to beshiftedv Amfg 'a' rearward im'ivement of the carriage, bodily annIrot-.leed into the ptit-h of the es- :la and means for shitting thetnmblers liorlly,` cai-pement dog, means for effecting such 28.111 atype writer, the combinatiomA movements, and means for placing the es-80 with the carriage, of eneseapement inclurlo oapement. flog undertension. j ing a wheel, anti also a limber pawl adapted Y 32. In a typel writer, the combination lfor movement into anfl ont of engagement withthe carriage.` of an eseapementincludl g with Vthe wheel, tlimiseconnected with ing a 'wheel and a {new} adapted for move` Q theirrespective keys and adapted for movement'into und ont o` operativerelation to 8a j 'ment into the path of the said pawl to limit governthe carriage, a spring having,` connecmovement thereof in one.iireetion, a. second tion with the pawlfmertns for increasing the ,f i'pa'wl adapted for engagement with the estensiono the spring, tmnblersndapteoer I -2-5 eapement wheel interenangeahly with the movement intothe pat'n hf the seid. ift-.YL a. limber pawl, means connected with one.pawl second pawl adapted for movement into and 90 Y ada} )te.d toContact with the other pawl to out of 'operative relationinterchangeably 4move it out of engagement. with the escapewith thefirst-mentioned pawi, means for l ment wheel, means for bodily shiftingthe governing the movement `of the seeend-f '30 tumblers, and means forholdinU the eseapementioned pawl, and adjustable means for ment wheelagainst bat-.kwart movement limiting the return movement of the iIst- 95during a rearward movement of the. carriage. In a. type writer, thecombination with the cnrriagmhaving a rack, of an esment of the limberpavfl with the escapement wheel to limit. the movement of the carriage,tnmblers adapted for) movement into the path of the limber pawi, andmeans i carried by the rocker to hold the. escapement' wheel and thelimber pavvl gainst backwardniovement when the carriage is movedrearwar-(liv.

with a carriage, of an es-iapement dogv mentioned pawl. n

B3. 1n a typewriter, the combination wlth the carriage and an eseapementshaft, of im,

1`n`a type .viiter, the combination' i eapement shaft operativ j.'engaged with the rack, an escap'ement l mounted on the shaft, a roeher,a pawi earrietl by the rocker for engagement with the escapement. wheel,

ajguitle on'the rocker, :1 timber pawl mounted 40 on the saitl shaft andhaving slitlahle connection with the said, guide to permit oi pivotal imovement of the timber pawlanil for lateral movement thereln inte-endout of engagement with the esea'liement wheel, means for limiting themovement of the iimber pawl with the wheel to `limit movement of thecarriage, tumblers adapted vfor movementv into the path of the limberpawl, and means for hott-ling the eseapement wheel against 5 50 backwardmovement daring the rearward .,movenientof the carriage.

30l In a type writer, the combination with the carnage having a rack, ofan esleap'ement shaft'operativev engaged with the rack, an escapement w.eel mounted on the 'shatt,- a roeker,`a rigid ;sawl carried b v .the

rocker for engagement with the escapement 'A wheel, a guitleon therocker, a limber pawl escapementwheel mounted on the shaft, a

reiche' wheel carried by the eseapement 100 wheel anti means actinguponsflid ratchet wheel to permit of a free rotation of the esv capementshaft when the carriage is re-.` traeteil, a i'oeker, a pewl carried bythe l rocker for engagement with the wheel, a guide mounted upon therocker concentric with the shaft, a liinber pawl mounted on the shaftand having slidnbleconnectionv with the Uuide to permit oa pivotalmovement o the limber pewl and for lateral movement tliereb)- into andout of engage- -ment with the wheel, and means for limiting the movementof the timber pawl with the wheel to limit the movement of the carriage.

34. ln a typewriter, the combination with the carriage, 'of aneseapement therefor in.- 'eluding a awl adapted forlmovement into anglouto operative reiation to govern the movement of the carriage, a.rocker carrying" a pawl adapted for movement into and ont (1foperativerelation i terehangeably with the inst-mentioned 'pz n. guide mounted v'mounted on the said s :sft and contacting n'pon the rocker, thet-mentioned .nawl i G0 with the said guide topernnt of a pivotal havingshtlableconnection with the gn le to ,movement thereof and for lateralmovement permit of a pivotal movementtherel. mio

efr.'-

l` thereh v into ami ont o? engagement with the 'eseipement wheelinterchangeably wlt-h. the said rigid pawl, means ier mmtmg the more andout of engagementwith the escapement wheel, umblers for cooperation withthe inst-mentioned pawl, and means mounted 'wheel during the returnmovement of the.

carriage.

35. In a typewritrnl machine, the combination with a carriage, of anescapement therefor including a stepping dog, tuniblers Afor coperationwith said stepping dog, a. rocker, and means mounted upon the rocker andengaging said stepping dog to hold the escapement against backwardmotion duringthe return movement of the carriage.

' 36. The combination with a movable carriage, of an cscapeniegitcomprising a liinber paw-l, an adjust-able stopfor said liinber pawl,and means adapted to be interposed between the stop and the pawi to varythe number of 'feed units imparted by the p awl at the ac tuationthereof, said means being adjusted by the adjustment of said stop.

37. The combination with a carriage, of step-by-step feed devicescomprising a. liinber pawl, a set screw for' iiiniting the motion ofsaid pawl, and a bloei; movably mounted and adapted to be interi-,raisedbetween said set screw and said pawi to vary the distance through whichsaid parti inoves at each actuation thereof, said means being adjustedby the adjustment of said set screw.

38. The combination with a movable carringe, of an esc( einem forcontrolling the movement of sait carriage, coin )rising a liinber pawl,means cooperating wit i said liinber awl at one endv of its strokevariably to limit its motion in one dictiomand independent meanscooperating viti-i said liinber pawl at the other end of its strokevariably to linit its motion in the other direc-tion. 39. Thecombination with a movable carriage, of an escapementfor controlling themovement of said carriage, comprising a liinber pawl, means controliedby the character keys of the tvpewi'iter t'orvariably limitingtheniotion of said timber pawl in one direction according to the widthof the several characters printed, siid independent means for variably`limiting the motion of said liinber pawl in the op @site direction tovary the spacing between t ie characters.

40. In a typewiirizm' machine having?. movable carriage, characterprinting keys and a case-shift device, the combination of carriage.feeding means. means for controllingr said carriage feeding meansaccording to the.

articular character key operated; means or controlling said carriagefeeding means f controlled by said case-shift device; and means forcontrolling said carriage feeding means to vary the width of spacingbetween the characters.

4l. The combination with a movable carriage, of step-by-steo i'eeddevices for said carriage, and three diiierent means for varying thelength of a-s'-ep of said carriage, one of'said means being-adaptedtovbe set by handand maintained in set positionand another of saidVmeans depending upon ther' printing key operated.

bler adapted to ber pawl, means for moving said tumbler into the path ofsaid pawl and a case shift device adapted to move said tumbler.

43. The combination with a carriage, of an 1f cscapeineiit comprisingV astepped liinber pawl, a stepped tumbler cooperating with Said liinberpawl, and vmeans for moving said 2f tumbler to bring any desired step ofsaid hin- 'l' ber pawl into position for engagement with any desired steosaid tumbler.

44. The com intion with a carriage, of esca ement mechanism comprising aliinber paw and a tumbler adapted to co6 erate I therewith, and meansfor moving saiv tumbler in either of two different planes- 45. Thecombination wit-li a inovahe. cariiage, of an escapeinent mechanism forcoiitrolling said carriage comprising an escapeing said liinber pawl, toprevent backward movement thereof wliensaid liinber pawl is inengagement with vsaid rack.

46. The combination with a movable cairiage, of an escapeinent mechanismfor con trolling said carriage, comprising an esca iement rack, a.rocker, a stiff pawl and a liin er pawl, and a detent carried b v saidrocker and engaging said liinber pawl, to prevent backv movement thereofbut disengaged therefrom when said rocker is operated.

4S. The combination with a movable carriage, of an escapeinent wheel forcontrolling said carriage, a rocker, a liinber pawl normally engagingsaid escapeinent'wheei, ,a stift' pawl engaging said escapenientwheel,alternately with said liinberpawl, and a f latch connected to saidrocker and normally engaging said liinber pawl.

49. The' combinatioirwith a carriage, of step-b wstep feed devices forsaid carriage comprising a ratchet and a liinbcnpawi, said liinber pawlhaving a movement with said ratthct, and a return movement free fromsaid ratchet, a. series of keys, a universal member operated by any ofsaid keys, and means operatively connected to said uniineiit rack, a.liinber pawl and a detent eiigagversal member for imparting said returnj movement to said liinber pawl.

50. The combination Ywith a carriage, of an' escapeinentcomprising aliinber pawl, said' limbel'i pawl havinga carriage feeding movementi*and a return movement, a universal 3

